Category
Understand short- and long-term training load, recognize when a week costs too much, and use deloads, recovery, and workout context to plan what comes next.
3 articles
Curated path
Learn what load represents, separate short- and long-term signals, recognize an overloaded week, and recover deliberately.
Training load is the stress created by training. Learn the difference between external load and internal load, how endurance athletes can measure it, and how to use load trends without chasing one perfect number.
Acute training load is recent stress, while chronic training load is the baseline you have built over several weeks. Learn how to compare them, what the acute:chronic workload ratio can and cannot tell you, and how to use load trends in weekly training reviews.
Archive
Read the guides as a focused product lane, then bring the decision back to the Training Log.
You trained too hard this week if load rose faster than recovery could absorb it. Learn the warning signs, what to check in your training log, and how to decide whether to repeat, reduce, or redistribute next week.
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iPhone product context
The blog explains the training decisions that Zone Training Log keeps visible inside the iOS-style product.
Training Log
Daily review, rest days, and workout cards stay close to the iPhone product.
Summaries
Long-range zone context for runners, cyclists, and mixed training blocks.
Settings
Apple Health, account sync, providers, and billing sit in one calm product family.
